Gas burner for coal ovens



I H. LANGE. GAS BURNER FOR COAL OVENS. APPLICATION FILED JAN. 19, 1921..

1,425,985, Patented Aug. 15, 1922.

2 SHEETS-SHEET 1.

- V g'n uem ioz f7. LH/Vf H. LANGE. GAS BURNER FOR COAL OVENS. APPLICATION FILED JAN. 19, [921.

1,425,985, PatelitedAug. 15, 1922.

2 SHEETSSHEET 2.

HENRY LANGE, on oUrncYQ lLLINOIS.

ens BURNER non coat ovnns.

To all whom it mag concern,

Be it known that I, HENRY Linen, a citizen of the United States, residing at Quincy, in the county ofv Adams and State of Illinois, have invented certain new and useful Improvements in Gas Burners for Coal Ovens; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates generally to cook stoves or ranges using bothcoal and gas for fuel, and the invention appertains more particularly to a gas burner for'the stove oven, this invention being an improve ment over the gas burner for coal ovens disclosed in my Patent No. 1,306,917, granted June 17, 1919.

It is the object of the invention,'in addi tion to the objects specified in such patent, to provide a novel and improved gas burner construction for the bottom of the oven, for" efficiently heating the interior of the oven by gas, and also providing for the effective heatingof practically the entire surface of the bottom of the oven from underneath when coal is used, so as to avoid irregular heating of such surface owing to the pres ence of the burner, should apan'or other object be placed over the burner.

Another object is the improvement of the burner construction as over the construction shown in said patent, whereby to simplify the device, and enable same to be manufactured at lower cost, as well as rendering thev construction of greater utility and advantage, and providing for the efficient and practically uniform heating of the burner portion of the oven bottom fromunderneath when coal is used as fuel.

\TVith the foregoingand other objects in view, which will be apparent as the description proceeds, the, invention resides in the construction and arrangement of parts here inafter described and claimed, it being understood that changes can be made within the scope of what is claimed without depart ing from the spirit of the invention.

The invention is illustrated in the accomstruction.

panying drawings, wherein I Figure 1 1s a front v ew of a coal stove. or range, showing the oven door removed,

and the gas burner in dotted lines. v

Figs. 2 and 3 are enlarged vertical'sec tions on the lines 2-2 and 3 3 of Fig. 4.

V Specification ofLettersPatent. Patgntgfl 15, 1922,, Application filed January 19, 1921. Serial No; 438,41L. v

WEE stares earenqr carrier.

73 l i gzeis a planjview 'offthe oven bottom showing the burner, a POI'tlOILQOf EhB cover oven, the back wall of the oven isprovided Y with ventilating openings 6 near the] top of the oven leading to the flue or'pipe 5, there-;

by permitting the products of combustion from burner to pass off to the chimney.

In carrying out the invention, the oven bottom 2, which is preferably a cast plate, is provided with an opening? to accommodate the burner, and the opening is circular,-

as shown, with a notch 9 at one side, and SillCl'bOttOm has a downwardly offset flange or step 8 along the edge of the opening. The bottom 2 is entirely open within the outline of the opening 7fland flange or seat 8' in which the gas burner 16 is fitted, such burner being circular and of annular form to fit within the opening 7. The burneris hollow and has a lug 17 at onev point to enter the notch 9 and position the burner properly within the opening 7, and the burner has an inlet boss 17 underneath the lug 17 for the connection of a mixing tube or pipe 10, through I which the gas flows into the chamber of the burner. Such tube or pipe 10 extends underneath the. oven 2 throng hone sidewall of the stove and is provided at its outer end with an air mixer lland a controlling valve 12 connected'to the gas supply pipe13. I

The burner 16 has an annular marginaloutstanding flange flush with the top of Y the burner to seat on theflange 8, substantially flush witltthe oven bottom 2, and thereby support the burner removably on the bottom 2. This eliminates the recess or other l fore n matter could accumulate,

thereby providing. for a more sanitary .con-

The burner 15 is provided therein with the spider having a central boss or hub 1 1- with an opening therein, and the radial channeled arms 15. The bottoms of the arms 15 merge at their outer ends into an annular web 30 projecting inwardly from the inner perhghery of the burner, and such web 30 has upstanding flanges 31 at its inner edge between the arms 15 and merging at their ends into the side walls oi said arms, leavin openings 22 between the arms of the spider. The gas burner 16 and spider are thus cast integral.

A cover plate or disk 20 is seated onthe spider and is t stencil down by means of screws 21 extending dowinvardly through the plate 20 and threadedly engaging two arms of the spider, or other securing means can be used. This plate 20 covers the openings and also the central opening oi the boss 1% and channels oi. the arms 15. The plate 20 is substantially flush with or slightly above the surface of the oven bottom, and the plate 20 and (top of the burner 16 provide practically an unbroken surface with the oven bottom, with only a sligl t annular space between the edge of the plate and top of the burner such burner being located between the edges of the plate 20 and bottom 52. The spider hub or boss 14 has an upper annular groove 35 intersecting the channels of the arms 15 for the flow off air from one channel to the other. By the provision or the spider having the openings 22 extending to the plate 20, the products of combustion, when coal is used as fuel, can pass upwardly within the spider tocontact with the plate 20, thus keeping said plate heated. the same as the oven bottom 2. so that an object placed. on the oven bottom over the burner wiil be heated substantially uniformly throughout its area. Thus, even though the provision of the fresh air inlet under the burner is made the plate 20 will be heated when coal is used to avoid a cold spot in the oven bot-tom within the oven burner. The plate'f iO also acts as battle for the inflowing fresh air,. deflecting the same to flow radially from the opening; of the boss 1.4; through the channels of the arms 15 to the burner and in this connection the margin or edge portion of the plate 20 extends beyond the flanges and overhangs the web 30 and inner portion 01 the burner 16, thus directing the air against and outwardly across the top of the burner'to the apertures 19 and providing for a perfect mixture of the air with the names or jets. The plate 20 has dependinga-rcuate flanges 23 near its edge, which overlap the flanges 31, and the ends otthe flanges 23 are spaced apart at the outer ends of the arms 15, to provide openin 's 32 registering with the channels of said arms through which the air can flow to the burner under said plate 20. The plate 20 has a lug 3S underneath san'ie reassess behind one flange 23 to enter a notch Set in the corresponding flange 31 to properly position the plate 20 on the spider for the reception of the screws 21.

Fresh air is admitted by way oi a vertical air tube 2- 1, within the flue having a slip connection 25 with the boss 14L and having its lower end communicating through an opening 26 provided in the bottom 29 of the stove, with similar slip connection between the lower end of said tube 2% and the stove bottom. Fresh air can therefore flow upwardly from below through the tube 24; to pass through the channels of the arms 15 to the burner. The tube 24L is cast with a partition or baiile 27' extending rearwardly to the back of the stove to compel the products of combustion within the flue 3 to flow forwardly around the tube 24 before passing through the outlet 1, thus unitorml y heating the oven bottom throughout its area. The upper and lower edges of the partition are. shaped to tit the oven and stove bottoms, the upper cc ge being recessed, as at 28. to fit under the burner 16 and its spider.

li ith the present construction as illustrated and dcscril ed, the oven can be heated efl ectiveiy with either the use of coal or gas fuel. and when coal isused. the plate 20 and burner 16 both being exposed to the products of combustion underneath, will be heated so to establish a more uniform radiating surface at the bottom of the oven throughout the burner portion. T he burner 16 bein iuiobstructed underneath. will be heated quickly by the products or combustion, as well as the plate 20 which is exposed to s eh products of combustion through the openings 22 of the spider. The

present construction also makes for simplicity and reduction in manufacturing cost. l 'Vhen the mixing tube or pipe 10 is unscrewed from the burner, the burner and spider, together with the plate 20, can be readily removed from the opening 7 of the oven bottom for purpose or cleanine" repairs or replacement. Said plate and burner when placed in the openin 7 close the same.

Having thus described the invention. what is claimed as new is 1 1. A. stove having an oven and a due under the bottom of the oven, said oven bottom.

having an opening, and a burner removably fitted in and closing said opening and constructed for the upward. penetration of heat through. the burner from the products oil: combustion in said flue.

2. A stove having an oven and a flue under the bottom of the oven, said oven bottom having an opening, and a gas burner 'removably titted in and closing said opening and arranged substantially flush with the oven bottom throughout the area 01 the burner. said burner being constructed for the upward penetration. of heat through the burner from the products of combustion in said'flue.

3. A stove having an oven and a flue un-- der the bottom of the oven, said oven bottom having an opening and a downwardly-oflset the products of combustion in said flue.

4. A stove having an oven and a flue under the bottom of the oven, said oven bottom having an opening, an annular gas burner in said opening at the edge thereof, and a cover plate within the burner, said burner and plate closing said opening and being removable from the opening as a unit, said burner and plate providing for the upward penetration of heat therethrough from the products of combustion in said flue.

5. A stove having an oven and a flue under the bottom of the oven, said oven bottom having an opening, an annular burner in said opening at the edge thereof and having means within the same for the flow of air to the burner, and a cover plate over said means, said burner and plate closing said opening and being removable as a unit from said opening, said burner and plate providing for the upward penetration of heat therethrough from the products of combus tion in said flue.

6. A stove having an oven and a flue under the oven, the oven bottom having an opening, an annular burner in said opening at the edge thereof having a spider therein provided with means for the flow of air to the burner, and a cover plate secured on said spider, said burner and plate being removable as a unit from said opening, and the openings of the spider exposing said plate to the products of combustion in said flue, said burner being directly exposed to the products of combustion in said flue, and the burner and plate closing said openin 7. A stove having an oven and a flue under the botom or" the oven, the oven bottom having an opening,a cover plate over said opening, and a gas burner between the edges of said opening and plate, said burner and plate closing said opening and being removable as a unit from the opening, said burner and plate being exposed to the products of combustion in said flue for the upward-penetration of heat through said burner and plate.

8. A stove'having an oven and a flue A flange substantially flush with the oven bottom, said burner having a spider with its arms united with the inner periphery of said burner, said spider having meansfor the flow of air to the burner, and a cover plate,

secured on the spider. substantially flush with the oven bottom, 's'aidplate being 821- posed through the openings of the spider tothe products of combustion in said flue, and the burner being exposed directly to the products of combustion in said flue. I

9. A stove having an oven and a flue under the bottom of the oven, said oven bottom having an opening, an annular gas burner to be CllSPOSGCllIl said opening and exposed to the products of combustion in said flue, said burner having an integral spider therein and the spider being formed with chan, nels for the flow of air to the burner, and a cover plate on the spider over the open ings thereof and exposed to the products of combustion in said flue through said openings, said burner and plate closing said opening and being removable therefrom as a unit. i

10. A stove having an oven and' a flue under the bottom of the oven, the oven bottom having an opening, an annular gas burner to be disposed. in said Opening having an annular web along its inner periphery and an integral spider within the burner having the outer ends of its arms merging into said web, said spider having channels for the flow of air to the burner, said burner being exposed to the products of-combustion in said flue, and a cover plate on the spiderv over the openings thereof and exposed through said openings to the products of combustion in said flue, said burner and plate closing said opening in the oven bottom and being removable from said opening as a unit,

11. A stove having an oven and a flue under the bottom of the oven, the oven bottom having an opening, an annular gas bur ner to be disposed in S211Cl'OP6Il1ng having integral means therein for the flow of all from the center radially to the burner, and

a cover plate oversaid means, said burner and plate closing said opening and *being 'i removable from said opening as a unit,.said

burner and plate being exposed to the prod nets of combustion in said flue.

12. A stove having an oven and a flue under the bottom of the oven, saidoven bottom having an opening, an annular burner to be disposed in said opening having a flange at its outer periphery to seat on the oven bottom around said opening, said burnand channeled arms merging at their router ends into said web, and a cover plate on said spider over the channels of said arms,

said burner and plate being removable from said opening as a unit and being adapted to close said opening, the burner and plate being exposed to the products of combustion in said flue.

13. A stove having an oven and a flue under the bottom of the oven, the oven bottom having an opening, an annular burner to be disposed in said openin having a flange at its outer periphery to seat on the oven bottom around said opening, said bur -er having an annular Web at its inner periphery a spider Within the burner integral therewith having a central opening and channeled arms merging at their outer ends messes into said Web, and a Cover plate 'on said spider over the channels or said arms said Web and plate having overlapping flanges between said arms, said burner and plate closing said opening and being removable therefrom as a unit, and said burner and I ate being exposed to the products of coinbnstion in said flue.

in testimony whereof I have signed my name to this specification in the presence of twosubscribing witnesses HENRY LANGE.

Witnesses :s

A. H. STORL: 7 CW 7 an ooHMUoK. 

